ABBA celebrates 40 years since 1st hit

Four decades on from the flares, fame and fabulousness, the members of ABBA say they have no regrets - not even about the clothes.

Members of the Swedish supergroup marked 40 years since their international breakthrough hit ‘Waterloo’ on Monday with a party for hundreds of guests at London's Tate Modern gallery.

Swedish singer's Bjorn Ulvaeus, left, and Anni-Frid Lyngstad, of the pop group ABBA pose on the red carpet ahead of the band's International anniversary party at the Tate Modern in central London on April 7, 2014. Credit: Joel Ryan/Invision/AP Images

Bjorn Ulvaeus said he felt “extremely proud and humbled” by decades of success that includes hit records, the musical ‘Mamma Mia’ and a museum dedicated to the band in Sweden.

And Frida Lyngstad said she was proud of ABBA's ultra-70s look of big boots and spangly jumpsuits - documented in a new photo book about the band. She said: “It was our youth, it was our time, and we decided how we wanted to dress ourselves onstage.” - Sapa-AP